The 54-year-old woman called police Thursday after hearing about Lamy's arrest, Foltz said.

The woman told police that Lamy came into her room while she was a patient on April 13 and gave her a medication that required she unbutton her hospital gown, he said. While her gown was open, Lamy allegedly fondled her breast, he said.

After Lamy left the room, the victim told another nurse what had happened, Foltz said. The woman was never contacted by hospital administrators and was discharged, as scheduled, the next day, he said.

Officials at Slidell Memorial Hospital could not be reached for comment late Friday afternoon. Foltz said administrators told him they had not been informed about the April incident.

Lamy was accused last week of groping a patient several times during the course of a night.

On Sept. 6, Lamy went into the 37-year-old woman's room to draw blood and allegedly asked for a kiss if he was able to take the sample. The patient refused, but Lamy is accused of kissing her anyway.

During the course of the night, Lamy allegedly visited the patient's room two more times, and is accused of fondling her while she pretended to be asleep.

Because of a problem with the phone in her room, the patient was not able to immediately report the incident to authorities. A visiting relative contacted police and Lamy was arrested Sept. 9 and booked into the St. Tammany Parish jail in Covington with three counts of sexual battery.

On Friday, police contacted Lamy, who was out on bond but turned himself in to face the new charges. He was booked with attempted sexual battery of the infirm and cruelty to the infirm in connection with the April incident as well as a count of cruelty to the infirm relating to the incident this month.

Foltz said the hospital is cooperating with both investigations.

Last week, hospital spokesman Sam Caruso Jr. said the administration was conducting its own investigation of Lamy, who had worked at the hospital for about 10 years. That investigation has turned up enough evidence to terminate him, but is still ongoing, Caruso said.

Caruso said the hospital screens all its nurses, checking their criminal history and licensing. In more recent years, the hospital has also been giving nurses psychological screenings before they begin work.